UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows From Operating Activities:
Net Loss	$ (16,317)	$ (23,733)
Adjustments To Reconcile Net Loss To Net Cash Used In Operating Activities:
Depreciation and Amortization	422	535
Stock-based Compensation	95	558
Increase in Inventory Reserves	307	89
Amortization of Right of Use Asset	1,518	1,312
Amortization of Debt Financing Costs and Accretion of Debt Discount	276	276
(Gain) Loss on Disposal of Assets	(3)	7
Realized (Gain) Loss on Sale of Investments Available-for-Sale	(4)	1
Foreign Currency Translation Adjustment	(3)	3
Changes in Assets and Liabilities:
Increase in Accounts Receivable, net	(1,454)	(1,865)
Increase in Inventory	(921)	(554)
Decrease in Prepaid and Other Assets	2,058	1,760
(Decrease) Increase in Accounts Payable	(688)	679
Decrease in Lease Liability	(1,435)	(1,266)
Increase (Decrease) in Other Liabilities	756	(825)
Decrease in Deferred License Revenue	(1,427)	(1,485)
Changes in Assets and Liabilities	(3,111)	(3,556)
Cash Used In Operating Activities	(16,820)	(24,508)
Cash Flows From Investing Activities:
Purchase of Investments Available-for-Sale	(17,389)	(19,107)
Sale of Investments Available-for-Sale	11,972	19,286
Purchase of Equipment	(197)	(408)
Cash Used In Investing Activities	(5,614)	(229)
Cash Flows From Financing Activities:
Payments on Debt	(6,750)	0
Payments on Short Term Note Payable	(941)	(656)
Proceeds from the Issuance of Common Stock	15,016	0
Offering Costs from the Issuance of Common Stock	(106)	0
Proceeds from the Issuance of Preferred Stock	15,000	0
Offering Costs from the Issuance of Preferred Stock	(85)	0
Proceeds from the Issuance of Common Stock for payment related to services provided	0	107
Repurchase of Common Stock to Pay Employee Withholding Taxes	0	(6)
Cash Provided by (Used In) Financing Activities	22,134	(555)
Decrease in Cash and Cash Equivalents	(300)	(25,292)
Cash and Cash Equivalents at Beginning of Period	13,280	48,682
Cash and Cash Equivalents at End of Period	12,980	23,390
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Interest	1,261	1,318
Supplemental Disclosure of Noncash Investing and Financing Activities:
Change in Unrealized Loss on Marketable Securities Available-for-Sale	$ 5	$ (4)